High efficiency heat dissipating device for lamps

ABSTRACT

A high efficiency heat dissipating device for lamps is disclosed. The lamp comprises a light-emitting element, a heat conduction body and a lamp housing characterized in that the heat conduction body is mounted at the lamp housing and the light-emitting element is mounted at the heat conduction body, heat from the light-emitting element is transferred by contacting with the heat conduction body such that the housing provides a large area for the function of heat dissipation, and the interior and exterior of the housing are increased with a plurality of lamp hoods depending on the power of the light-emitting element, and the multi-layer lamp hoods are combined with lamps of different specification, the housing is adapted for solid illumination such that heat energy is dissipated via the surface area of the multi-layer lamp hoods and by means of convection current, a great amount of energy is dissipated and therefore the heat dissipation rate is increased.

BACKGROUND OF THE INVENTION

Conventional lamp and lightings are designed with a fin-like structureto dissipate heat. If these lamp or lighting structure is employed asstreet lamp, birds build nest on these structure and the structure willalso collect dust, and this will greatly reduce the heat dissipationefficiency. Further, these structures depend on convection current todissipate heat which is less effective and the lamp or lightings aredirty after a period of time. Further, the additional fin-like structureor the lamp increases the cost of production and the fin-like structuremay not suitable for all types of lamp or lightings.

Accordingly, it is the inventor's main objective to invent a lamp orlighting which mitigates the above drawbacks. The lamp structure has alarger surface area for heat dissipation and the cost of production isgreatly reduced.

SUMMARY OF THE INVENTION

The primary purpose of the present invention is to provide a highefficiency heat dissipating device for lamps comprising a light-emittingelement, a heat conduction body and a lamp housing characterized in thatthe heat conduction body is mounted at the lamp housing and thelight-emitting element is mounted at the heat conduction body, heat fromthe light-emitting element is transferred by contacting with the heatconduction body such that the housing provides a large area for thefunction of heat dissipation, and the interior and exterior of thehousing are increased with a plurality of lamp hoods depending on thepower of the light-emitting element, and the multi-layer lamp hoods arecombined with lamps of different specification, the housing is adaptedfor solid illumination such that heat energy is dissipated via thesurface area of the multi-layer lamp hoods and by means of convectioncurrent, a great amount of energy is dissipated and therefore the heatdissipation rate is increased.

Yet still another object of the present invention is to provide a highefficiency heat dissipating device for lamps, wherein the heatconduction body is a heat-conduction seat formed as a unit from bycasting.

Still a further object of the present invention is to provide a highefficiency heat dissipating device for lamps, wherein the multi-layerhoods is made from heat dissipation material or from thing aluminumplates.

The foregoing object and summary provide only a brief introduction tothe present invention. To fully appreciate these and other objects ofthe present invention as well as the invention itself, all of which willbecome apparent to those skilled in the art, the following detaileddescription of the invention and the claims should be read inconjunction with the accompanying drawings. Throughout the specificationand drawings identical reference numerals refer to identical or similarparts.

Many other advantages and features of the present invention will becomemanifest to those versed in the art upon making reference to thedetailed description and the accompanying sheets of drawings in which apreferred structural embodiment incorporating the principles of thepresent invention is shown by way of illustrative example.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic external view of a preferred embodiment of thepresent invention.

FIG. 2 is an exploded view of a high efficiency heat dissipating devicefor lamps of a preferred embodiment of the present invention.

FIG. 3 is another exploded view of a high efficiency heat dissipatingdevice for lamps of a preferred embodiment of the present invention.

FIG. 4 is a sectional view of a high efficiency heat dissipating devicefor lamps of a preferred embodiment of the present invention.

FIG. 5 is a sectional view of another preferred embodiment in accordancewith the present invention.

FIG. 6 is a sectional view of a further preferred embodiment inaccordance with the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following descriptions are of exemplary embodiments only, and arenot intended to limit the scope, applicability or configuration of theinvention in any way. Rather, the following description provides aconvenient illustration for implementing exemplary embodiments of theinvention. Various changes to the described embodiments may be made inthe function and arrangement of the elements described without departingfrom the scope of the invention as set forth in the appended claims.

Referring to FIGS. 1 to 4, there is shown a lamp which comprises ahousing 10 mounted with a heat conduction body 11 and the heatconduction body 11 contains a light-emitting element 20, and thelight-emitting element 20 is positioned on the heat conduction seat 111of the heat conduction body 11. A light reflection hook 16 is mountedonto the light-emitting element 20. Heat generated from thelight-emitting element 20 is transferred by contacting with the heatconduction body 11 such that the housing of the lamp has a large areafor heat dissipation, and the interior and exterior of the housing 10can be extended or added with a multi-layer hood 50 depending on thepower of the light-emitting element 20, and can be combined with lamp orlightings of various types. The surface of the multi-layer hood 50 isprovided with at least a heat dissipation slot 15 and a connectionsection 12. The heat dissipation slot 15 is arranged so that effectiveconvection heat dissipation could be obtained and the heat energy isdissipated via the surface of the multi-level hood 50 by way ofconvection current, and a great amount of heat energy is thusdissipated.

The multi-layer hood 50 is from heat dissipation material or thinaluminum plates, and the increase in the multi-layer hood 50 is for thepurpose of applications in lighting. For instance, useful in solidillumination, such as street lamps, commercial lighting, indoor lightingand landscape lightings such that the power of the lighting is increasedand the light-emitting element is protected.

Accordingly, the cost of production of the lamp is lowered and thelongevity of the lamp is increased.

In accordance with the present invention, the housing 10 of the lamp orthe multi-layer hood 50 is provided with at least one connection portion12 and screw hole 13 is provided at the connection portion 12 for themounting and locking of heat dissipation material or thin aluminumplates with screws 14 so that another layer of hood 50 can be locked tothe housing 10. There is a gap between the hood 50 and the housing 10 toallow natural convection current. Further, the housing 10 or themulti-layer hood 50 is provided with at least one heat dissipation slot15 such that convection or air could be occurred and heat dissipation isachieved.

As shown in FIG. 5, the hood 50 of the present invention is combinedwith a cylindrical lamp 100, and the multi-layer hood 50 is a cylindermade from heat dissipation material or thin aluminum plate, and thesurface of the housing 110 or the multi-layer hood 50 is provided withat least one connection section 12 with screw hole for screw 14 to mountthe multi-layer hood 50 between the light-emitting element 20 and thehousing 110, such that the area of heat dissipation is increased and theefficiency of heat dissipation is improved but the shape or theappearance of the lamp is not affected. Accordingly, cost for heatdissipation is reduced and the cost of manufacturing is low.

As shown in FIG. 6, the multi-layer hood 50 is combined with a conicshaped lamp 200. The hood 50 has a conic shape made from heatdissipation material or thin aluminum plate. The surface of the housing110 or the multi-layer hood 50 is provided with at least one connectionsection 12 having mounted with screw hole for screw 14 to lock themulti-layer hood 50 to the housing 110, and a gap is formed between thehood 50 and the conic shaped lamp 200 to allow natural convectioncurrent. The shape and the appearance of the lamp is not affected. Asmentioned earlier, the material for making the multi-layer hood 50 isthin aluminum plate and the area can be enlarged and the heatdissipation effect is increased.

It will be understood that each of the elements described above, or twoor more together may also find a useful application in other types ofmethods differing from the type described above.

While certain novel features of this invention have been shown anddescribed and are pointed out in the annexed claim, it is not intendedto be limited to the details above, since it will be understood thatvarious omissions, modifications, substitutions and changes in the formsand details of the device illustrated and in its operation can be madeby those skilled in the art without departing in any way from the spiritof the present invention.

1. A lamp comprising a light-emitting element, a heat conduction bodyand a lamp housing characterized in that the heat conduction body ismounted at the lamp housing and the light-emitting element is mounted atthe heat conduction body, heat from the light-emitting element istransferred by contacting with the heat conduction body such that thehousing provides a large area for the function of heat dissipation, andthe interior and exterior of the housing are increased with a pluralityof lamp hoods depending on the power of the light-emitting element, andthe multi-layer lamp hoods are combined with lamps of differentspecification, the housing is adapted for solid illumination such thatheat energy is dissipated via the surface area of the multi-layer lamphoods and by means of convection current, a great amount of energy isdissipated and therefore the heat dissipation rate is increased.
 2. Thelamp of claim 1, wherein the heat conduction body is a heat-conductionseat formed as a unit from by casting.
 3. The lamp of claim 1, whereinthe multi-layer hoods is made from heat dissipation material or fromthing aluminum plates.
 4. The lamp of claim 1, wherein the multi-layerhoods is provided with at least one connection section adapted for themounting of the heat dissipation material or the thin aluminum plates.4. The lamp of claim 1, wherein the multi-layer hood is provided with atleast one heat dissipation slot arranged to provide effective heatdissipation by convection current.
 5. The lamp of claim 1, wherein themulti-layer hood is adaptable to solid illuminations such as streetlightings, commercial lightings, indoor lightings and landscapelightings to increase the power of the lamps and to protect thelight-emitting element.